package src;

import java.util.*;
class A{
	static Scanner s = new Scanner(System.in);

	static int[] inS,memo;
	public static void main(String[] args) {
		inS = new int[s.nextInt()];
		memo = new int[inS.length];
		{
			for(int i=0;i<inS.length;++i) inS[i]=Integer.parseInt(s.next());
			Arrays.sort(inS);
			Arrays.fill(memo, -1);
		}

		int r=Integer.MIN_VALUE;
		for(int i=0;i<inS.length;++i) {
			r=Math.max(r, dp(i));
		}
		System.out.println(r);
	}
	static int dp(int index){
		int d = inS[index];
		if(memo[index]<0) {
			int r=1;
			for(int i=index+1;i<inS.length;++i) {
				if(inS[i]%d==0)
					r=Math.max(r, dp(i)+1);
			}
			memo[index]=r;
		}
		return memo[index];
	}
}